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Samsung Dryer FE — Frequency / AC Line Error

Samsung Dryer · Error code FE

What FE Means

The main control board detected an out-of-spec line frequency on the AC input. Almost always a power supply problem (bad outlet wiring, ground issue) or a failed PCB.

Symptoms

  • FE on display
  • Dryer immediately faults at power-up
  • Display behaves erratically
  • Occasional resets during cycle

Common Causes

1
Improper outlet wiring / missing neutral

Recently rewired outlet with neutral and ground swapped.

2
Generator or inverter power source

Non-utility power with unstable frequency.

3
Failed main control board

PCB frequency detection circuit failed.

4
Loose neutral connection

Neutral floating, board sees garbled AC waveform.

How to Fix It

  1. Verify the dryer is on standard 60Hz (US) utility power — not a generator.
  2. Test the outlet wiring with a circuit analyzer — neutral, hot, ground must be correct.
  3. Tighten the neutral connection at the outlet and at the panel.
  4. Reset breaker and test.
  5. If outlet is verified good, the main control board needs replacement.
  6. An electrician should verify panel-side neutral if FE persists across outlets.

Parts You May Need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

Common replacement Outlet circuit analyzer View on Amazon→ Common replacement Main control board View on Amazon→

More Samsung Dryer Codes

3C 3C Error — Motor Error 9E1 9E1 / 9C1 — Power Supply / Voltage Error AC AC / AE — Communication Error Between Boards bE bE / bE2 — Button / Key Stuck C8 C8 — Lint Filter / Vent Reminder C80 C80 / C90 — Vent Blockage Detected

All Samsung codes → All dryer codes →

Verified against manufacturer documentation: samsung.com

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.